upper CL < PE [Study As­sess­ment]

posted by Helmut Homepage – Vienna, Austria, 2015-04-21 02:39 (3265 d 12:48 ago) – Posting: # 14724
Views: 11,457

Hi ElMaestro,

❝ If I am not mistaken HRotter or some other guru once mentioned on this forum that a PE outside the CI is theoretically possible;


Thomas Jaki. When he tried to explain that to me I got mental hickups. But was other stuff: The one-sided CI of a CV with an α >0.5 – which is nuts.

library(PowerTOST)
CV    <- 0.2
df    <- 22
alpha <- 0.55
CL    <- CVCL(CV=CV, df=df, side="upper", alpha=alpha)
cat("CV      :", CV, "\nCL of CV:", CL[1], "to", CL[2], "\n")

# CV      : 0.2
# CL of CV: 0 to 0.1992335


Implemented according to Chow/Liu… Beyond me.

❝ from the equation for the 90% BE CI -which I hope is generally accepted- I think it is evident that the PE is not outside the CI.


Rightyright. Not possible.

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